<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            margin: 50px auto;
            width: 500px;
            height: 500px;

            background: url(../images/banner01.png) no-repeat pink;
            background-position:calc(100% - 20px) calc(100% - 10px);
        }
    </style>
</head>
<body>
    <div class="box">

    </div>
</body>
</html>